Abstract: A process for the production of arylene sulfide polymers is provided which comprises subjecting a mixture of at least one sulfur source, at least one organic monohalo compound, at least one polyhalo-substituted aromatic compound and at least one polar organic compound to polymerization conditions sufficient to produce the arylene sulfide polymer. The organic monohalo compound can be added at any time prior to substantial completion of polymerization to provide arylene sulfide polymers of increased extrusion rate.

Abstract: A process for producing a water-soluble polyelectrolyte comprising mixing acrylic acid or methacrylic acid with ammonium carbonate and a polyhydric alcohol--glycerol or ethylene glycol at a molar ratio therebetween of 2-6:1-2:1 respectively; adding hydrogen peroxide to the resulting reaction mass in an amount of from 0.1 to 1.0% by mass of the acid; polymerization of the reaction mass first at a temperature of 60.degree. to 80.degree. C. then at a spontaneous elevation of temperature to 110.degree.-140.degree. C.

Abstract: A weatherproof coating for roofs or decks is formed when an adhering material is used in conjunction with a nonwoven mat formed from a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon.

Abstract: Non-miscible blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with (b) a polyvinylidine fluoride polymer of predominantly vinylidine fluoride exhibit improved appearance, melt stability, and impact resistance.

Abstract: Blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) a thermoplastic copolyester thermoplastic polymer having either linkages in one recurring unit of the polymeric chain, exhibit high surface gloss and improved processability without deterioration in impact strength.

Abstract: An N-(hydroxyphenyl)maleimide-isobutylene copolymer having the following repeating units: ##STR1## wherein R.sup.3 is a halogen atom or a lower alkyl group having 1-5 carbon atoms; l, m and n are numbers satisfying conditions of 0.01<n/(l+m).ltoreq.10 and 0.2<l/(l+m).ltoreq.1; and p is an integer of 0-4.

Abstract: Caprolactam and oligomers thereof are removed from nylon granules containing same in a process wherein(a) nylon granules are introduced at not less than 100.degree. C. at the top of a substantially upright treatment zone,(b) nylon granules are passed downward through the treatment zone while being heated to from 130.degree. to 210.degree. C.,(c) superheated steam is passed at from 130.degree. to 210.degree. C. upward through the treatment zone,(d) dry nylon granules are withdrawn at the bottom end of the treatment zone and steam containing caprolactam and oligomers thereof is withdrawn at the top of the treatment zone,(e) the caprolactam and oligomers thereof containing steam thus obtained is passed through a column giving an aqueous solution of caprolactam and oligomers thereof as bottom product and virtually caprolactam-free steam as overhead product.

Abstract: Improved impact resistance is exhibited by blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) polyacetal polymer of at least 85 mole percent polymerized formaldehyde.

Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a poly(.alpha.-olefin) exhibit improved processability.

Abstract: Polymer blends having a major proportion of a linear alternating copolymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride are provided which demonstrated improved processability and melt stability.

Abstract: A heat-resistant polyester having a structure represented by the formula (I):--X--Y).sub.m X--Z).sub.n (I)wherein X represents the structure (A): ##STR1## wherein R represents hydrogen, methyl, or ethyl, Y represents the structure (B): ##STR2## Z represents the structure (C):--OC(CH.sub.2).sub.l CO-- (C)wherein l is an integer of 2 to 6, and m and n are independent repeating numbers, the mole ratio of Y component and Z component in the formula (I) being 1/99 to 99/1 and said polyester having an inherent viscosity (.eta..sub.inh) of at least 0.6 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane.

Abstract: Blends of, as a major component, a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, as a minor component, a polymeric, predominantly linear, hydroxyalkyl ether of bis(hydroxyphenyl)alkane, exhibit improved processability and oven life.

Abstract: A two-step process to make a poly(arylene sulfide sulfone) polymer exhibiting improved high temperature properties is described. In the first step a prepolymer characterized as dihalo-terminated polyethersulfone oligomers is prepared by reacting an aromatic diphenol with an excess of a dihalo aromatic sulfone. In the second step the excess dihalo aromatic sulfone and the oligomers are copolymerized in the presence of a sulfur source to form a poly(arylene sulfide sulfone) polymer. An alkali metal carboxylate is present in the second step. The polymers exhibit improved softening temperature and glass transition temperature and are useful in high temperature applications.

Abstract: Halogen-containing hydrocarbon phenol cyanate resins are prepared by reacting the product resulting from reacting a hydrocarbon phenol resin with a metahalogenated hydroxymethyl phenol with a cyanogen halide.

Abstract: Disclosed herein is a polyamide resin composition comprising a polyamide resin, from 0.1 to 1% by weight of fine silica based on the polyamide resin and from 1 to 99% by weight of a silane coupling agent based on the fine silica. The packaging material obtained from the polyamide resin composition of the present invention has uniform and satisfactory transparency and is excellent in the blocking resistance.

Abstract: In one embodiment, a process is provided for treating virgin poly(arylene sulfide) resins, wherein a heated polymer slurry, comprising a virgin poly(arylene sulfide) resin and water is contacted by an acidic treating solution comprising at least an acidic component, wherein the amount of the acidic component in the acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. In a second embodiment, the process is provided for treating a virgin poly(arylene sulfide) resin, wherein the virgin poly(arylene sulfide) resin is slurried with an aqueous acidic treating solution comprising an acidic component and an aqueous component and the concentration of the acidic component in the aqueous acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin.